barack obama and mitt romney have met for their first debate. one month ahead of the presidential election. they spent most of their time are gug ov arguing over the economy. the debate took place in denver, colorado, one of the few battleground states that could decide the election. candidates concentrated on how to revive the economy. >> the only way to meet governor romney's pledge of not reducing the deficit, or, not -- adding to the deficit, is by burdening middle-class families, now that's -- not my analysis. >> the president has a view very similar to the view he had when he ran four years ago. that a bigger government, spending more, taxing more, regulating more, if you will, trickle-down government would work. that's not the right answer for america. >> romney kept attacking obama, and ignoring the moderator's instructions. obama some times had trouble getting a word in. many u.s. media analysts say romney had a better performance. the candidates will face off in two more debates. they have got just more five weeks to win over undecided